Thin sheet forming equipment adopting thick slurry method for experiment
By integrating the steel belt platform of the thick slurry flake forming equipment with the drying device, combining the heating table, molder guide rails and fans, the problems of high energy consumption and low drying efficiency of the thick slurry flake forming equipment are solved. , realizes the efficient and low-energy consumption sheet forming and drying process, simplifying the equipment structure and operation process.
Patent Information
- Application Number
- CN202420179555.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-25
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-01-25
AI Technical Summary
The existing thick slurry flake forming equipment has problems such as large experimental site, complex equipment system, many raw materials, complex forming, low hot air drying efficiency, high energy consumption, easy damage to steel belts, difficult cleaning and cumbersome material replacement steps.
A thick slurry flake forming equipment for experimental use with simple structure was designed. By integrating the steel belt platform with the drying device, the utilization rate of the drying device is improved, and the heating tabletop, molder guide rail, propulsion motor, fan and heating are used. The device combination realizes efficient sheet forming and drying process and reduces energy consumption.
The energy consumption and drying efficiency of the sheet forming equipment have been reduced, the equipment structure has been simplified, the experimental cost has been reduced, and the quality and production efficiency of the sheet finished products have been improved.
Smart Images
Figure CN222171302U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of thin slice forming equipment, in particular to an experimental thin slice forming equipment suitable for a thick slurry method. Background Art
[0002] Tobacco flakes, also known as reconstituted tobacco leaves and reorganized tobacco leaves, are comprehensive utilization products in tobacco industry production. At present, there are three relatively mature tobacco flake production technologies in the world: thick slurry method, roller pressing method and papermaking method. Among them, the thick slurry method tobacco flakes are made by crushing and mixing the tobacco raw materials, adding a certain proportion of high-efficiency adhesives and other additives, and evenly spraying them on the stainless steel belt after sufficient stirring and defoaming. After drying on the stainless steel belt, the tobacco flakes are formed, and then the tobacco flakes are peeled off from the stainless steel belt to obtain the finished product. When the thick slurry method reconstituted tobacco leaves are formed on the sheet base, tobacco raw material powder, adhesives, smoke-generating agents and other materials can be evenly distributed on the surface and inner layers of the sheet base, so its thickness and quantitative stability, thermal conductivity uniformity and smoke-generating effect are better.
[0003] Compared with the roller pressing method, the thick pulp method reconstituted tobacco has the advantages of low density, good filling capacity, easy aroma penetration, and good processing performance. Compared with the papermaking method, it has the advantages of less fiber content, light impurities, simple process and no sewage.
[0004] However, the existing thick slurry thin sheet forming equipment, whether it is production equipment or experimental equipment, the main forming equipment part is composed of a soft steel belt supporting a slurry box. The steel belt is in a closed loop and driven by a roller. After forming, the slurry is carried by the steel belt and dried by hot air drying. A scraper is used to scrape the dried thick slurry thin sheet from the steel belt to complete the forming. After the thin sheet is desorbed, the steel belt is washed and dried many times and returned to the slurry box to continue forming. This type of equipment and its supporting processes have problems such as large experimental site, complex equipment system, many raw materials required, complex forming, low hot air drying efficiency and high energy consumption, difficult scraping and easy damage to the steel belt, easy to leave paper defects during the scraping process, difficult to clean the slurry box and steel belt, and cumbersome experimental material replacement steps.
[0005] Therefore, developing a new experimental thick slurry thin sheet manufacturing equipment with simpler structure, better drying efficiency and lower energy consumption is a problem that the art wants to solve. Utility Model Content
[0006] The utility model aims to provide an experimental thick slurry thin slice forming device which has simple structure, high drying efficiency and low production energy consumption.
[0007] The idea of the utility model is to integrate the steel belt platform used for sheet forming and the drying device as much as possible, so as to improve the utilization rate of the drying device and thus reduce energy consumption.
[0008] In order to achieve the above-mentioned purpose, the utility model provides an experimental thick slurry method thin film forming device, which includes a thin film forming mechanism and a drying mechanism, wherein the thin film forming mechanism includes a heating table 6, a pair of former guide rails 14 arranged along the length of the heating table 6, and a former 4 arranged on the former guide rails 14 and capable of reciprocating along the guide rails, and a heat preservation cover 31 is installed on the upper part of the heating table 6; the drying mechanism includes a fan arranged on the upper part of the heat preservation cover 31, and a heating device is arranged on the lower part of the heating table 6.
[0009] As a preferred embodiment, the sheet forming mechanism further includes a propulsion motor 15 connected to the former 4 to control the reciprocating motion of the former 4 on the former guide rail 14 .
[0010] Preferably, the former 4 includes a pair of support plates 43 installed on the former guide rail 14 and a scraper 41 and a baffle 44 arranged between the pair of support plates 43. The scraper 41 is arranged so that it is perpendicular to the length direction of the former guide rail 14. The gap between the lower edge of the scraper 41 and the upper surface of the heating table 6 constitutes a thin film slurry coating channel. The upper space surrounded by the support plates 43, the scraper 41 and the baffle 44 serves as a liquid storage area 45 of the thin film slurry container.
[0011] As another preferred embodiment, the former 4 is replaced by a spray device, and the spray direction of the spray device is toward the heating table 6. The spray device is also arranged on the former guide rail 14, so that the spray device can reciprocate along the guide rail under the action of the propulsion motor 15. The flake slurry is evenly sprayed on the heating table 1 by the sprayer, and then the subsequent operation steps are carried out.
[0012] In the present invention, the heating table 6 and the heat-insulating cover 31 are connected via a hinge.
[0013] A preferred embodiment is that the heating device is a heating tube installed under the heating table 6 and an electric heating circulation system 23 connected to the heating tube.
[0014] In the utility model, the sheet forming device further comprises a bracket 1 for supporting the sheet forming mechanism and the drying mechanism.
[0015] Preferably, a viewing window 32 is provided on the heat-insulating cover 31, so that the operator can observe the forming state of the sheet in the heat-insulating cover through the viewing window.
[0016] In order to realize the control of the sheet forming device, the sheet forming device also includes a power distribution cabinet 5 electrically connected to various electrical components (including but not limited to the propulsion motor 15, the fan, the heating pipe, the electric heat circulation system 23, etc.), and the power distribution cabinet 5 has a control panel 51, which realizes the input and output of the control command. The setting of the power distribution cabinet and the control panel belongs to the prior art in this field and will not be described in detail here.
[0017] During operation, the heat preservation cover is opened, and the flake slurry is poured into the flake slurry container surrounded by the support plate 43, the scraper 41 and the baffle 44. The slurry flows out to the heating table through the flake slurry coating channel along the scraper 41. At this time, the flake former 4 is controlled by the propulsion motor 15 to move along the guide rail so that the flake slurry is evenly coated on the heating table. Under the action of the heating device and the fan, the flake slurry on the heating table is evenly heated and dried into flakes. After the flakes are formed, the heat preservation cover can be opened to peel off the flakes.
[0018] For tobacco sheet products with a size of 2400mm×300mm×2mm, the sheet forming and drying temperature is 70-95℃, and the drying time is generally 10-30min. The moisture content of the corresponding finished sheet is controlled at 6-14%. The power required for the heating and air supply system during the drying process is less than 6kw, and the drying time is about 15min. It can be seen that its thermal utilization rate is high and the energy consumption is low. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is a schematic diagram of the structure of the molding equipment of Example 1;
[0020] Figure 2 It is a structural schematic diagram of the former;
[0021] Figure 3 is a rear view of the former;
[0022] Figure 4 for Figure 3 AA direction view. DETAILED DESCRIPTION
[0023] The following embodiments are used to explain the technical solutions of the present utility model in a non-limiting manner.
[0024] Example 1
[0025] like Figure 1 The forming equipment shown in the figure comprises a support 1 composed of pillars 11, cross beams 12 and support beams 13 made of profiles, on which a heating table 6 for forming tobacco sheets is installed, which is 2500 mm long and 300 mm wide. The heating table 6 is made of stainless steel, and its upper surface is treated with high-temperature baking paint to form a film to reduce surface adhesion and increase the ease of desorption of the sheet after drying.
[0026] A heating tube and an electric heat circulation system 23 electrically connected thereto are installed below the heating table 6 to ensure that the table can be evenly heated to a desired temperature.
[0027] The heat dissipation hood 31 is installed on the bracket, connected to the bracket 1 through hinges and hydraulic support rods, and the hood body can be opened upward around the hinges. Four adjustable-speed fans are evenly installed on the upper part of the heat dissipation hood along the length direction, and an exhaust port is set on the heat dissipation hood. By adjusting the position of the fan, when the heat dissipation hood is closed and the fan is turned on, the angle between the air supply direction and the longitudinal surface of the thin film forming is 90° to 60°. When the heat dissipation hood is turned on, it is convenient for the forming operation, and when it is closed, it is convenient to timely remove the water evaporated during the drying process of the tobacco slices, control the humidity inside the hood body, and assist in controlling the moisture content of the slices. A window 32 is installed in the side opening of the heat dissipation hood 31, and a waterproof lighting tube is installed on the upper surface of the heat dissipation hood 31 to facilitate the supplementary light to observe the drying of the slices.
[0028] A pair of former guide rails 14 are arranged along the length direction above the bracket 1, and the former is mounted on the guide rails. The former is controlled to reciprocate on the guide rails by connecting a propulsion motor. The former is arranged on the table in a direction perpendicular to the guide rails.
[0029] Specifically, two shaping machine guide rails 14 are respectively provided with a moving trolley 16, and a fixed crossbar 17 is provided between the two moving trolleys 16 to fix the shaping machine on the fixed crossbar 17. Figure 2-4 As shown, it includes a pair of support plates 43 fixed on the fixed cross bar 17, and a scraper 41 and a baffle 44 are arranged between the pair of support plates 43, wherein the length direction of the scraper 41 is perpendicular to the length direction of the former guide rail 14, and the scraper is perpendicular to the table surface or basically perpendicular to the table surface, so that a thin film slurry coating channel is formed between the lower edge of the scraper 41 and the heating table surface 6, and the upper space surrounded by the support plates 43, the scraper 41 and the baffle 44 is used to store the thin film slurry.
[0030] The height of the scraper 41 can be adjusted by a magnetic micrometer head 42 to precisely control the distance between the lower edge of the scraper 41 and the heating table 6, ensuring that the slurry forming thickness range is 0.5-5mm and the thickness control accuracy can reach 0.001mm.
[0031] When using, preheat the device first, turn on the heating circulation system, and ensure that the table and the insulation cover are heated until the temperature is uniform. Among them, the insulation cover, except for the window area, is covered with thermal insulation materials to avoid unnecessary heat loss.
[0032] Open the heat preservation cover, prepare the slurry required for forming the thin sheet, pour the thin sheet slurry into the thin sheet slurry container, and control the height of the scraper 41 to ensure that the slurry is evenly coated on the heating table. The propulsion motor is controlled by the electric control cabinet, and the propulsion motor controls the movement of the former on the guide rail, thereby controlling the longitudinal length of the thin sheet forming.
[0033] After the slurry is formed on the heating table, the forming push rod returns to the forming zero point at a uniform speed, and the drying timing starts according to different forming thicknesses and different formulas.
[0034] Take out the former, close the hood, turn on the fan, adjust the air volume according to different dehumidification needs, and leave a certain gap between the hood and the bracket. Turn on the light tube on the hood to observe the drying of the slices through the window.
[0035] When the drying time is over, the dried slices are completely formed on the upper surface of the heating box and the finished slices can be directly peeled off.
[0036] For tobacco sheet products with a size of 2400mm×300mm×2mm, the sheet forming and drying temperature is 70-95℃, and the drying time is generally 10-30min. The moisture content of the corresponding finished sheet is controlled at 6-14%. The power required for the heating and air supply system during the drying process is less than 6kw, and the drying time is about 15min. It can be seen that its thermal utilization rate is high and the energy consumption is low.
Claims
1. An experimental thick slurry thin sheet forming device, the device comprises a thin sheet forming mechanism and a drying mechanism, characterized in that The sheet forming mechanism comprises a heating table (6), a pair of former guide rails (14) arranged along the length of the heating table (6), and a former (4) arranged on the former guide rails (14) and capable of reciprocating along the guide rails; a heat preservation cover (31) is installed on the upper part of the heating table (6); the drying mechanism comprises a fan arranged on the upper part of the heat preservation cover (31); and a heating device is arranged on the lower part of the heating table (6).
2. The experimental thick slurry sheet forming equipment according to claim 1 is characterized in that The sheet forming mechanism also includes a propulsion motor (15) connected to the former (4) and controlling the former (4) to reciprocate on the former guide rail (14).
3. The experimental thick slurry sheet forming equipment according to claim 2 is characterized in that The former (4) comprises a pair of support plates (43) mounted on the former guide rail (14) and a scraper (41) and a baffle (44) arranged between the pair of support plates (43). The scraper (41) is arranged to be perpendicular to the length direction of the former guide rail (14). The gap between the lower edge of the scraper (41) and the upper surface of the heating table (6) constitutes a thin film slurry coating channel. The upper space surrounded by the support plate (43), the scraper (41) and the baffle (44) serves as a liquid storage area (45) of the thin film slurry container.
4. The experimental thick slurry sheet forming equipment according to claim 1 is characterized in that The former (4) is replaced by a spray device, the spray direction of which is toward the heating table (6).
5. The experimental thick slurry sheet forming equipment according to claim 1 is characterized in that The heating tabletop (6) is connected to the heat-insulating cover (31) via a hinge.
6. The experimental thick slurry sheet forming equipment according to claim 1 is characterized in that The heating device is a heating tube installed under the heating table (6) and an electric heating circulation system (23) connected to the heating tube.
7. The experimental thick slurry sheet forming equipment according to claim 1 is characterized in that The sheet forming device also includes a bracket (13) for supporting the sheet forming mechanism and the drying mechanism.
8. The experimental thick slurry sheet forming equipment according to claim 1 is characterized in that A viewing window (32) is provided on the heat-insulating cover (31).
9. The experimental thick slurry sheet forming equipment according to claim 1 is characterized in that The sheet forming equipment further comprises a power distribution cabinet (5) electrically connected to each electrical component, wherein the power distribution cabinet (5) has a control panel (51).